scholarly journals Synthesis of Novel N1and N2Indazole Derivatives

2012 ◽  
Vol 9 (4) ◽  
pp. 1676-1682 ◽  
Author(s):  
Prasanna Bethanamudi ◽  
Srinivas Bandari ◽  
Kanakaraju Sankari ◽  
Amarnath Velidandi ◽  
G. V. P. Chandramouli
Keyword(s):  
Ionic Liquids ◽  
Phase Transfer ◽  
Phase Transfer Catalyst

The alkylation of 5-cyano indazoles 2 in the presence of readily available imidizolium salts (ionic liquids) (Bmim)BF4as phase transfer catalyst were performed to afford the regio isomersN1-andN2-(substituted alkyl)-5-cyano indazoles. TheN1-alkylated cyano indazoles were converted to the correspondingN1-(substituted alkyl)-5-aminomethyl and 5-carbaldehydes5(a-f)and6(a-f).

Dual role of ionic liquids as phase transfer catalyst and solvent for glycosidation reactions

RSC Advances ◽  
2011 ◽  
Vol 1 (9) ◽  
pp. 1721 ◽  
Author(s):  
Vineet Kumar ◽  
Ian Jamie Talisman ◽  
Omar Bukhari ◽  
Jacqueline Razzaghy ◽  
Sanjay V. Malhotra
Keyword(s):  
Ionic Liquids ◽  
Phase Transfer ◽  
Dual Role ◽  
Phase Transfer Catalyst

Application of surface active amino acid ionic liquids as phase-transfer catalyst

2020 ◽  
Vol 303 ◽  
pp. 112607 ◽  
Author(s):  
Emil Szepiński ◽  
Patrycja Smolarek ◽  
Maria J. Milewska ◽  
Justyna Łuczak
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Active Amino Acid ◽  
Surface Active

β-cyclodextrin grafted on lignin as inverse phase transfer catalyst for the oxidation of benzyl alcohol in H2O

Tetrahedron ◽  
2016 ◽  
Vol 72 (14) ◽  
pp. 1773-1781 ◽  
Author(s):  
Zujin Yang ◽  
Xia Zhang ◽  
Xingdong Yao ◽  
Yanxiong Fang ◽  
Hongyan Chen ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Oxidation Of Benzyl Alcohol ◽  
Inverse Phase Transfer Catalyst

Microwave Energy Pretreated In Situ Transesterification of Jatropha Curcas L in the Presence of Phase Transfer Catalyst

2014 ◽  
Vol 625 ◽  
pp. 267-270 ◽  
Author(s):  
Sintayehu Mekuria Hailegiorgis ◽  
Mahadzir Shuhaimi ◽  
Duvvuri Subbarao
Keyword(s):  
Statistical Model ◽  
Jatropha Curcas ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
In Situ Transesterification ◽  
Heat Pretreatment ◽  
Seed Particles ◽  
Optimum Reaction ◽  
Microwave Heat

In the present work, microwave heat pretreatment of jatropha curcas seed particles and use of phase transfer catalyst (PTC) to enhance in-situ transesterification were utilized together. It was observed that use of alkaline BTMAOH as a PTC and microwave heat pretreatment of jatropha curcas seed particles had substantially increased the reaction rate of in-situ transesterification as compared to the reaction conducted with microwave untreated seeds in the absence of BTMAOH as a PTC. Statistical model equation was developed to investigate the interaction effect of reaction variables and establish optimum reaction condition. At optimum condition, experimentally obtained FAME yield (93.7±1.53% w/w) was in close agreement with statistical model predicted FAME yield (96.75%) at 38°C and 37 minutes of reaction time.

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